Jesus has commissioned us and empowered us to tell the world about him.
Evangelism, Holy Spirit, Being Witnesses, Receive Power
Assembly Of God
"All authority in heaven and on earth is given to me." It was, probably, this announcement that led to the inquiry which Luke mentions next. Being informed that all authority is now given to him, the disciples expected to see him begin to exercise it.
Christ's Power, Receive Power, Times Or The Seasons